<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="卡包" prop="course">
        <el-input
          v-model="queryParams.course"
          placeholder="请输入卡包名称"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['Course:Course:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['Course:Course:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['Course:Course:remove']"
        >删除</el-button>
      </el-col>
<!--      <el-col :span="1.5">-->
<!--        <el-button-->
<!--          type="warning"-->
<!--          plain-->
<!--          icon="el-icon-download"-->
<!--          size="mini"-->
<!--          @click="handleExport"-->
<!--          v-hasPermi="['Course:Course:export']"-->
<!--        >导出</el-button>-->
<!--      </el-col>-->
      <el-col :span="3">
      <el-button
        size="mini"
        type="success"
        icon="el-icon-check"
        @click="SetTarget"
        v-hasPermi="['Course:Course:edit']"
      >切换卡组</el-button>
      </el-col>

      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>
    <!--              @selection-change="handleSelectionChange"-->
    <el-table    ref="singleTable"  v-loading="loading" :data="CourseList"
              highlight-current-row
              @current-change="handleCurrentChange"
              style="width: 100%">

<!--      <el-table-column type="selection" width="55" align="center" />-->
<!--      <el-table-column label="唯一id" align="center" prop="uid" />-->
      <el-table-column  width="20" type="index" label=""></el-table-column>
      <el-table-column label="卡组名称" align="left" prop="course" />
      <el-table-column label="备注" align="left" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['Course:Course:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['Course:Course:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改Course对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="卡组名称" prop="course">
          <el-input v-model="form.course" placeholder="请输入卡组名称" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" placeholder="请输入备注" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>
<script>
import { listCourse, getCourse, delCourse, addCourse, updateCourse,SetDefaultCourse,GetDefaultCourse } from "@/api/Course/Course";

export default {
  name: "Course",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: false,
      // 总条数
      total: 0,
      // Course表格数据
      CourseList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        course: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      },
      currentRow:null
    };
  },
  created() {
    this.getList();

  },
  updated() {
    GetDefaultCourse().then(res =>{
      this.setCurrent(res);
    })
  },
  methods: {
    open1() {
      this.$message({
        message:"卡包切换成功～",
        type:'success'
      });
    },
    open2() {
      this.$message('这是一条消息提示');
    },
    SetTarget(){
      SetDefaultCourse(this.currentRow.uid);
      this.open1();
    },
    setCurrent(row) {  //设置表格的默认选择
      var index=0;
      for(var v of this.CourseList){
        if(v.uid===row.uid){
          break;
        }
        index++;
      }
      this.$refs.singleTable.setCurrentRow(this.CourseList[index]);
    },
    handleCurrentChange(val){
      this.currentRow=val;
    },
    handleChange(val) {
      // val 代表 value 值
      if (val) {
        // 操作选中角色发生变化
        this.$set(this.options, val)
      } else {
        this.$set(this.options, '')
      }
    },
    /** 查询Course列表 */
    getList() {
      this.loading = true;
      listCourse(this.queryParams).then(response => {
        this.CourseList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        uid: null,
        course: null,
        remark: null,
        createTime: null,
        createBy: null,
        updateTime: null,
        updateBy: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.uid)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加卡组";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const uid = row.uid || this.ids
      getCourse(uid).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改卡组";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.uid != null) {
            updateCourse(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            if(this.form.course==null){
              this.$message({
                message:"创建失败 - 请输入完整的内容后在创建！",
                type:"error"
              })
              this.open = false;
              return;
            }
            addCourse(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const uids = row.uid || this.ids;
      this.$modal.confirm('是否确认删除"' + row.course + '"卡组？').then(function() {
        return delCourse(uids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
        this.$modal.msgError("删除失败，因为卡组下还存在卡片、标签、单词请删除后在试！");

      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('Course/Course/export', {
        ...this.queryParams
      }, `Course_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
